Polish composer Bohdan Riemer, trained in both biology and music theory, developed a personal theory of symmetrical twelve-note 'mirror structures' inspired by the ordered patterns he once studied as a scientist. The title work, Resonant Mirror (2009), applies these principles with striking consistency, yet surprises with the richness of its Romantic-tinged melodic and textural invention. The twelve miniatures of Interludes (2013-15) recall the great piano cycles of Debussy, Bartok and Hindemith, guiding the listener through contrasting moods from melancholic stillness to exuberant, almost monumental climaxes. A cycle of songs to poems by Maria Pawlikowska-Jasnorzewska completes the programme, performed by soprano Kornelia Wojnarowska with pianist Witold Kawalec, revealing a composer whose scientific rigor never eclipses his lyrical imagination.